Interdisciplinary School of Green Energy/Institute of Advanced Materials & Devices, Ulsan National Institute of Science and Technology (UNIST), 100, Banyeon, Ulsan 689-798, South Korea.
ACS Nano. 2012 Feb 28;6(2):1715-23. doi: 10.1021/nn204688c. Epub 2012 Feb 3.
An alternative and effective route to prepare conducting polyaniline-grafted reduced graphene oxide (PANi-g-rGO) composite with highly enhanced properties is reported. In order to prepare PANi-g-rGO, amine-protected 4-aminophenol was initially grafted to graphite oxide (GO) via acyl chemistry where a concomitant partial reduction of GO occurred due to the refluxing and exposure of GO to thionyl chloride vapors and heating. Following the deprotection of amine groups, an in situ chemical oxidative grafting of aniline in the presence of an oxidizing agent was carried out to yield highly conducting PANi-g-rGO. Electron microscopic studies demonstrated that the resultant composite has fibrillar morphology with a room-temperature electrical conductivity as high as 8.66 S/cm and capacitance of 250 F/g with good cycling stability.
报道了一种制备具有高增强性能的导电聚苯胺接枝还原氧化石墨烯（PANi-g-rGO）复合材料的替代和有效途径。为了制备 PANi-g-rGO，首先通过酰基化学将胺保护的 4-氨基酚接枝到氧化石墨（GO）上，由于回流和暴露于氯化亚砜蒸气以及加热，GO 发生了同时部分还原。在存在氧化剂的情况下，进行苯胺的原位化学氧化接枝，以得到高导电性的 PANi-g-rGO。电子显微镜研究表明，所得复合材料具有纤维状形态，室温电导率高达 8.66 S/cm，电容为 250 F/g，具有良好的循环稳定性。
